TIFU by deleting a partition on my bootcamp without properly backing up the drive

This literally just happened 10 minutes ago before I decided the type this. I'm still in a state of mental shock due to what I have just done.

So basically I'm back at my parents' place visiting for christmas. Early this morning (I'm in asia) I discovered the house computer, an iMac, had a malfunctioning windows os. It wouldn't boot up and I couldn't do a system restore via safe mode. So after a bit of thinking I decided I'll just do a clean reformat of the windows os by deleting the partition and then reinstalling everything again. The problem was that since my parents only knew how to use windows, they completely neglected the mac os and stored everything on the windows os. Oh and they didn't have any backup of any data that was stored on the windows os, meaning that everything on that os is the original and single copy.

Now the only way I knew how to backup the windows drive was by accessing the Bootcamp folder in the mac os and copy and paste all of the data. I copied all of the data that was contained inside the folder into an external hard drive. Now here comes the fuck up. The estimated time remaining was around 3 hours (yeah it was heavily partitioned towards the windows os) and it was Christmas Eve. I was in a festive mood and thus wasn't in the mood to remedy this stupid issue, hence I left it running and attended the party that was going on downstairs.

Roughly an hour into the party, my little brother, aged 9, was playing Minecraft on that same computer came downstairs and told me that there was an error in the copying. I responded with a "just press skip until the error stopped prompting" and left it at that.

Awhile late after I was notified by my little brother again that it was completed. I checked the data by clicking the first few folders, everything seemed intact so I decided it was time to partition the drive and wipe all the data off the corrupt windows os.

So finally the clock struck 12 and it is finally Christmas. Yay. My mom took some photos and then being the Asian mom she is, wanted to immediately save and catalogue the new photos taken. It was then I heard a scream from her "SON WHERE ARE ALL MY PHOTOS?" To my horror I realized that there were only empty folders inside "My Pictures" with no photos inside them. 4 years worth of photos gone within seconds. 4 years worth of memories gone due to my stupidity. Due to the one fucking word skip. Graduation photos, promotion photos, celebrations, and the most important folder of all, the last holiday with my late grandmother. I'm now desperately going through every single folder to assess the damage done, while the rest of the family are trying to find the old memory cards from different areas of the house in a last ditch attempt to find the photos praying that they didn't delete them instead of celebrating Christmas.

HOLY FUCKING SHIT WHAT HAVE I DONE.

TLDR; Attempted to fix a bootcamp corrupted windows OS, ended up deleting 4 years worth of photos and more.

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